These videos and audio files are bonus content related to the December 2014 issue of Guitar World. For the full range of interviews, features, tabs and more, pick up the new issue on newsstands now or at the Guitar World Online Store.

Lace Music Products has announced the Dissonant Aggressors Signature humbucker pickup series. After choosing Lace pickups for his successful Gibson “Golden Axe” Explorer, Mastodon guitarist Bill Kelliher has developed his own signature humbucker, the Dissonant Aggressors.

These videos are bonus content related to the December 2013 issue of Guitar World. For the full range of interviews, features, tabs and more, pick up the new issue on newsstands now, or in our online store.